Which of the following statements are correct?

Select one or more:

a.

An increase in every price by 25% is equivalent to a 20% decrease in income at constant prices.

b.

The set of affordable bundles decreases if the budget line becomes steeper,

c.

An increase in every price by 20% is equivalent to a 25% decrease in income at constant prices.

d.

The set of affordable bundles will not change all prices and income increase by the same factor.

e.

An increase in every price by 25% is equivalent to a 25% decrease in income at constant prices.